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Electricity MetersResidential
Ultrasonic Heat Meter
ULTRAHEAT T350 (2WR6...)
A customer tailored, accurate and reliable heat meter especially
designed for residential applications
Heat MetersResidential
Ultrasonic Heat Meters Residential
Highest measurement accuracy The ULTRAHEAT T350 Heat Meter was specifically designed for the varied residential applications and works with the proven ultrasonic measurement technology of Landis+Gyr giving the highest accuracy, no maintenance and stable measurement for years and years. The flow rate is measured by the ultrasonic dragging principle, where two transducers alternatively transmit ultrasonic signals in and against the direction of flow. From the difference between the measured propagation times, the flow rate can precisely be calculated.
Future-proof and durable The measuring tube of the ULTRAHEAT T350 has a robust all-metal design and is fitted with the special internal profile DuraSurface. Interfering reflections in the measurement channel are filtered out from the outset. That makes the meter more resistant to dirt deposits.
The advantages are obvious: technical superiority and no wearing parts. It is the excellent reliability that counts.
Easy mounting and handling The ULTRAHEAT T350 is easy to install and to handle, it does not require straight lengths of pipe or flow strengtheners and can be installed any way round. The mounting orientation does not affect the measuring accuracy or the measuring dynamics.The Heat Meter is insensitive to small particles in the water and operates silently.
Comprehensibility The readouts on the generously sized display are clearly structured and easy to understand, divided into an easily accessible customer area and a service area. Not only instantaneous values but also set day values and monthly values can be shown. Display of all consumption values facilitates traceability and heat billing.
Performance Features
■■ High measuring accuracy and – reliability due to proven ultrasonic technology
■■ Nonwearing – requires no mechanical moving parts
■■ Measuring range of flow: 1:1000 acc. to EN 1434
■■ Total range: 1:500
■■ Any mounting orientation, mounting in return or in flow
■■ No straight lengths of pipe or flow strengtheners required
■■ yearly set day
■■ 15 monthly values
■■ Battery operated up to 11 years
■■ 24 V AC/DC external supply as special version
■■ Optical interface acc. to IEC870 (M-Bus)
■■ Modules: Pulse Output or M-Bus
■■ Self-diagnostics
Customer tailored Ultrasonic Heat Meter for residential applications
Our ULTRAHEAT T350 heat meters are not only accurate and permit easy billing but they are also absolute reliable, long-life and low-cost in demand in building services technology. These heat meters offer you all that – especially for your individual residential needs.
M-Bus, with 1.5m cable connected, with galvanic isolation
Voltage: 50V max.
Current: 1.3 M-Bus leads
Adressing: primary or secondary
Permitted mean frequency of reading:
once with 3h @ 2400 bd, once with 24h @ 300 bd
Technical Data
Approval EN 1434 Class 3
Protection class IP 54/ (IP65)
Display LCD 7-digit
Physical units kWh / MWh or MJ / GJ
Temperature range (C°) 5-105
Nominal pressure PN (bar) PN16, PN25
Max. Diff. of Temp. (K) 80
Min. Diff. of Temp. (K) 3
Switch-off limit (K) 0.2
Nominal flow rate qp (m3/h) 0.6 1.5 2.5
Max. Flow qs (l/h) 1200 3000 5000
Min. Flow qi (l/h) 6 15 25
Operating limit (l/h) 2.4 6 10
Mounting length (mm) 110/190 110 /130/190 130/190
Thread connection G3/4/G1 G3/4/G1/G1 G1/G1
Pressure drop at mounting length 110 qp (mbar)
(mbar) 150 150 --
Pressure drop at mounting length 130 qp (mbar)
(mbar) -- 160 200
Pressure drop at mounting length 190 qp (mbar)
(mbar) 150 160 200
Pulse Output for energy or volume, with 2m cable connected, with galvanic isolation
Pulse significance: 1 pulse per kWh or MJ respective 1 pulse per 100 Liter
Pulse length: 100ms
Energy / Volume: specify in order or change with Service-Software
Voltage: max 30 V
Current: max 30 mA
Classification: OB (acc. to EN 1434-2)
Voltage drop: ca. 1.3V at 20 mA
Dielectric strength: 500 Veff against ground
Communication
Tailored selection – the temperature sensor ULTRAHEAT T350 works with permanently connected Pt 500 temperature sensors. Depending on individual customer we can supply not only the standard sensor Direct Short M10 x 27.5 mm for direct installation but also 5.2 x 45 mm sensors for pockets – with cable length of 1.5 m or 5m. Installation accessories are available for the flow sensor whereas the return sensor is already mounted in the volume measuring unit.
Big features in a small space – the calculator With its compact calculator, the ULTRAHEAT T350 heat meter easily fits into any mounting box. For optimum readability, it can be rotated on the measuring tube and can also be mounted up to 1m away even in the series version. The mounting plate can be used as a wall holder. The electronic unit also features an optical interface and options for remote reading, such as M-Bus or pulse output.
Tested and proven over many years Since more than two decades the Landis+Gyr Ultrasonic meters have been successful in tough district- and residential heating applications.
The high measurement stability and reliability have been proven 100-thousand times in the field.
Quality “Made in Germany” – reliable, individual and innovative
Manage energy betterWe deliver peace-of-mind when it comes to managing your energy. Decades of leadership in technology and in-depth knowledge at Landis+Gyr means we are able to offer you an extensive, high quality and proven portfolio.
Obtaining the highest level of energy efficiency has never been easier. We have translated our unique expertise of utility processes into an integrated energy management solution, Gridstream. We can help you streamline your processes, increase customer loyalty and secure revenue. Gridstream packages our AMM offering, meeting your needs today and in the future.
Let us tailor our innovative solutions to meet your specific needs. Whether electricity, water, heat/cold, gas metering or load management, we provide what you need to ensure that your energy is managed with increased precision and reliability.
With Landis+Gyr as your trusted partner, you can manage energy better
Landis+Gyr in short■■ 5000 employees worldwide
■■ Operations on all five continents
■■ Broadest portfolio of products and services in the industry
■■ 25 years of smart metering experience
■■ 1000 AMM systems delivered
■■ 300 million energy meters produced
■■ Largest relevant engineering capacity in the industry
■■ 60 years of direct load management experience
■■ 15 million load management receivers produced
■■ ISO certified for quality and environmental processes
■■ World leader in integrated energy management solutions
■■ Committed to improved energy efficiency and environmental conservation
■■ Solid and established partner network
Landis+Gyr (Europe) AG
Theilerstr. 16301 ZugSwitzerland
Tel. +41 41 935 6000Fax +41 41 935 [email protected] D000031923
Landis+Gyr operates according to the principle of continuous improvement. Information in this document is subject to change without notice.Landis+Gyr is a registered trademark of Landis+Gyr (Eupore) AG, Switzerland. The information contained in this brochure is accurate at the time of printing (11-2010) - © Landis+Gyr (Europe) AG
Landis+Gyr GmbH
Humboldtstr. 64D-90459 NurembergGermany
Phone +49 911 723 7036Fax +49 911 723 [email protected]
